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公开(公告)号：US07795358B2
公开(公告)日：2010-09-14
申请号：US12035773
申请日：2008-02-22
IPC分类号： C08G63/08
CPC分类号： C08L67/04 , C08L2666/18
摘要： Poly(lactic acid) blends having a relatively high heat distortion temperature can be prepared by simple blending of PLA polymers of opposite stereoforms, followed by processing, e.g. by injection molding, under specific conditions of temperature and pressure, so as to produce a blend which, on differential scanning calorimetry, exhibits two peaks within the melting range of the stereocomplex. Moreover, by careful selection of these conditions of temperature and pressure, it is possible to use PLA polymers of significantly higher molecular weights than previously thought possible.
摘要翻译： 具有相对高的热变形温度的聚（乳酸）共混物可以通过简单混合相对立体形式的PLA聚合物，然后加工，例如， 通过注射成型，在特定的温度和压力条件下，以产生在差示扫描量热法上在立体络合物的熔融范围内显示两个峰的共混物。 此外，通过仔细选择这些温度和压力条件，可以使用比先前认为可能的显着更高分子量的PLA聚合物。
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公开(公告)号：US07919566B2
公开(公告)日：2011-04-05
申请号：US12017498
申请日：2008-01-22
IPC分类号： C08G67/00
CPC分类号： C08L67/04 , C08L2666/18
摘要： A blend of a multiply branched lactic acid polymer of one steric configuration with a linear lactic acid polymer of the opposite steric configuration has different and more useful properties than either component alone.
摘要翻译： 一种立体构型的多支化乳酸聚合物与相反立体构型的线性乳酸聚合物的共混物与单独的组分具有不同的和更有用的性质。
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公开(公告)号：US20090036600A1
公开(公告)日：2009-02-05
申请号：US12067987
申请日：2005-09-28
摘要： The present invention describes a polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, a process for the preparation thereof, the use of an aromatic diol having a single benzene ring for the preparation of polyhydroxycarboxylic acid, in particular polyhydroxycarboxylic acid having bimodal or multimodal molar mass distribution, as well as a method of preparing injection-molded goods or blown film, polymer blends, composite materials or nanocomposite materials using said polyhdroxycarboxylic acid.
摘要翻译： 本发明描述了具有双峰或多峰摩尔质量分布的多羟基羧酸，其制备方法，使用具有单个苯环的芳族二醇用于制备聚羟基羧酸，特别是具有双峰或多峰摩尔质量的聚羟基羧酸 分布，以及使用所述多羟基羧酸制备注塑产品或吹塑薄膜，聚合物共混物，复合材料或纳米复合材料的方法。
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